Cell Phones

I always thought Android and related issues were only Google.  Maybe I was reading too fast but I had not heard of the Open Handset Alliance, until I was investigating the company Audience. 
Audience makes a unique noise control chip for cell phones.  Noise control is performed in software in many phones.  The Audience chip reduces and compensates for background noise for both listening and talking, and takes advantage of a second microphone in the handset for noise detection. 
Of course this adds cost (maybe $5 or more) so will not be found in all phones.  Look for it in your next phone, but I don't think the ATT store will be able to tell you if the phone has a noise chip.

Anyway, The Open Handset Alliance is a group of 65 technology and mobile companies who have come together to accelerate innovation in mobile and offer consumers a richer, less expensive, and better mobile experience. Together we have developed Android™, the first complete, open, and free mobile platform. We are committed to commercially deploy handsets and services using the Android Platform.